Computed value On elements, always computes to normal. On ::before and ::after, if normal is specified, computes to none. Otherwise, for URI values, the absolute URI; for attr() values, the resulting string; for other keywords, as specified.

Animatable no

Canonical order the unique non-ambiguous order defined by the formal grammar

Values

The value is a URI that designates an external resource (such as an image). If the resource or image can't be displayed, it is either ignored or some placeholder shows up.

<counter>

Counters may be specified with two different functions: 'counter()' or 'counters()'. The former has two forms: 'counter(name)' or 'counter(name, style)'. The generated text is the value of the innermost counter of the given name in scope at this pseudo-element; it is formatted in the indicated style ('decimal' by default). The latter function also has two forms: 'counters(name, string)' or 'counters(name, string, style)'. The generated text is the value of all counters with the given name in scope at this pseudo-element, from outermost to innermost separated by the specified string. The counters are rendered in the indicated style ('decimal' by default). See the section on automatic counters and numbering for more information. The name must not be 'none', 'inherit' or 'initial'. Such a name causes the declaration to be ignored.

attr(X)

Returns the value of the element's attribute X as a string. If there is no attribute X, an empty string is returned. The case-sensitivity of attribute names depends on the document language.

open-quote | close-quote

These values are replaced by the appropriate string from the quotes property.

no-open-quote | no-close-quote

Introduces no content, but increments (decrements) the level of nesting for quotes.

Examples

Code sample - headings and quotes

HTML Content

<h1>5</h1>
<p> We shall start this with a quote from Sir Tim Berners-Lee,
<q cite="http://www.w3.org/People/Berners-Lee/FAQ.html#Internet">
I was lucky enough to invent the Web at the time when the Internet already existed - and had for a decade and a half.</q> We must understand that there is nothing fundamentally wrong with building on the contributions of others.
</p>
<h1>6</h1>
<p> Here we shall quote the Mozilla Manifesto,
<q cite="http://www.mozilla.org/en-US/about/manifesto/">
Individuals must have the ability to shape the Internet and their own experiences on the Internet.</q> And so, we can infer that contributing to the open web, can protect our own individual experiences on it.
</p>

Code sample - class based example

HTML Content

CSS Content

/* use a class rather that an element selector to give more flexibility.
Simple string example, but don't forget add a leading space in the text string
for spacing purposes */
.newEntry::after {
content: " New!";
color: red;
}